calathea {popbio} | R Documentation |
Projection matrices for a tropical understory herb (Calathea ovandensis) for plots 1-4 and years 1982-1985 and the pooled matrix
data(calathea)
A list of 17 matrices ordered by plot then year, with the pooled matrix last.
A projection matrix constructed using a post-breeding census with 8 size classes: seed, seedling, juvenile, pre-reproductive, and 4 reproductive classes divided by leaf area.
Table 7 in Horvitz and Schemske (1995). The pooled matrix is from Table 8.
Horvitz, C.C. and D.W. Schemske. 1995. Spatiotemporal variation in demographic transitions of a tropical understory herb: Projection matrix analysis. Ecological Monographs 65:155-192.
data(calathea) ## Single matrix calathea[[11]] image2(calathea[[11]], text.cex=.8) title( paste("Calathea", names(calathea[11])), line=3) ## MEAN matrix (exclude pooled matrix) mean(calathea[-17]) ## all plot 1 calathea[1:4] ## all 1982 matrices calathea[ grep("1982", names(calathea)) ] # OR # calathea[seq(1,16,4)] # split(calathea, 1:4)[[1]] ## Growth rates -see Figure 7 x<-sapply(calathea[-17], lambda) x<-matrix(x, nrow=4, byrow=TRUE, dimnames= list(paste("plot", 1:4), 1982:1985)) x matplot2(x, type='b', ylab='Growth rate', main='Calathea growth rates')